Integrated dynamic memory and operating method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 4, 2004
Grant Date -
Jan 30, 2003
app pub date -
Jul 26, 2002
filing date -
Jul 26, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An integrated dynamic memory includes a memory cell array having memory cells for storing a charge corresponding to an information bit. The memory cell array has a regular cell area with regular memory cells, a first test cell area with first test cells and a second test cell area with second test cells. A control unit is provided for refreshing the charge contents of the regular memory cells with a first refresh time, a control unit is provided for refreshing the charge contents of the first test cells with a second refresh time, and the charge contents of the second test cells with a third refresh time. The first refresh time is shorter than the second refresh time and the latter is shorter than the third refresh time. An evaluation unit is provided for detecting memory cell defects in the first and second test cell areas.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully